Soft rot disease

Erwinia is a genus of Enterobacteriacea containing mostly pathogens, which cause soft rot disease in many ornamental plants and crops, including Asparagus officinalis. Chemical treatments to control Erwinia have lost their attractiveness because of the development of resistant strains and the negative impacts on the environment and human health.

10p viengels 25-08-2023 4 1   Download

Continued part 1, part 2 of ebook "Plant pathology (Fifth edition)" provide readers with content about: specific plant diseases; environmental factors that cause plant diseases; plant diseases caused by fungi; plant diseases caused by prokaryotes - bacteria and mollicutes; plant diseases caused by parasitic higher plants, invasive climbing plants, and parasitic green algae; plant diseases caused by viruses;...

568p hanlinhchi 11-11-2022 19 3   Download

Pectobacterium spp. are necrotrophic bacterial plant pathogens of the family Pectobacteriaceae, responsible for a wide spectrum of diseases of important crops and ornamental plants including soft rot, blackleg, and stem wilt. P. carotovorum is a genetically heterogeneous species consisting of three valid subspecies, P. carotovorum subsp. brasiliense (Pcb), P. carotovorum subsp. carotovorum (Pcc), and P. carotovorum subsp. odoriferum (Pco).

22p viseulgi2711 31-08-2021 5 1   Download

Under this study, botanicals, plant volatiles, organic acids, organic salts and essential oils were used against E. carotovora subsp. carotovora under in vitro. Based on antibacterial efficacy, curative application was formulated against decay in carrot by dipping under laboratory conditions. Out of these all treatments, EC formulated consortia (cinnamon + lemongrass + thyme) oils at 0.1% given the better results against disease reduction (98.0%), weight loss (3.0%), and preserve the edible nature.

16p nguaconbaynhay7 15-08-2020 18 2   Download

Chemical inducers facilitate broad-spectrum of induced resistance against plant pathogens and thus reduced the toxicity of the chemicals used in excess by the farmers for the management of plant diseases. Banana soft rot incited by Pectobacterium carotovorum subsp. Carotovorum (Pcc) cause huge economical loss to the farming if infected at an early stage. In the present study, chemical inducers viz., salicylic acid, potassium silicate, potassium sulphate, fosetyl aluminium, humic acid @ 1000 ppm and COC 3g/lit + streptocycline 300ppm (check) were tested against Pccunder glass house conditions.

12p caygaocaolon6 30-07-2020 12 1   Download

The present study was conducted to evaluate bacterial endophytes against Pythium spp. causing soft rot of ginger. Water soaked lesions at the emerging base and the collar region was the typical symptoms observed on infected plants. Sprout appeared pale yellowish and withering off of plant was seen and such rhizomes were rotten and emitted foul smell in which diseased plants came off with a gentle pull.

8p cothumenhmong5 17-05-2020 13 1   Download

The rotting of potato tubers is usually noticed from the time of planting till harvesting also in country stores as well as in cold stores. The proper isolation, pathogenicity testing and necessary characterization studies are very much essential for identification of actual causal organism which is very necessary for development of effective management strategy.

8p trinhthamhodang5 16-05-2020 14 1   Download

The experiment was conducted to assess the performance of ginger genotypes suitable for high yield and resistance to soft rot disease in Gudalur block of The Nilgiris district. Fourteen genotypes were collected and the performance was studied for three seasons during the year 2015 - 2018. Acc-578 showed better performance in terms of vegetative and yield characters followed by Mahima. IISR-1 GB, Maran and Thadimaran recorded moderate resistance to per cent disease incidence under field conditions in the Nilgiris.

7p trinhthamhodang5 16-05-2020 9 1   Download

Erwinia chrysanthemi (Ec) is a destructive pathogen which causes soft-rot diseases in diverse plant species including orchids. We investigated whether colonization of Oncidium roots by the endophytic fungus Piriformospora indica (Pi) restricts Ec-induced disease development in leaves.

16p viharuno2711 21-04-2020 6 1   Download

Seventy-eight genotypes were screened for charcoal rot resistance in the sick plot during rabi 2018-19. The results of the study indicated that the genotypes E 36-1 (11.53 %), followed by DSV 4 (12.24 %), Dagadi Solapur (13.40 %) showed less disease incidence compared to other genotypes. Highest per cent charcoal rot incidence was recorded in CSV 8R (54.34 %). The study also revealed that the local genotypes recorded reduced levels of other charcoal rot parameters such as per cent lodging due to charcoal rot (soft stalk), mean length of spread (MLS) and mean number of nodes crossed (MNC).

7p nguaconbaynhay4 22-03-2020 10 0   Download

aqueous plant extracts against storage Bacterial soft rot is one of the most common diseases of vegetables including potato which is found both in field and storage. Although, various micro-organisms are responsible for the soft rot disease in potato but Erwinia carotovora is mostly responsible for this disease. Use of chemical antibiotics on stored products can lead to the development of multidrug resistance in various human pathogenic bacteria causing severe health complications.

10p cothumenhmong4 23-03-2020 11 0   Download

Ginger soft rot caused by Pythium aphanidermatum is the most destructive and widespread fungal disease of ginger. It has drastic effect on yield causing upto 50% loss under favorable conditions. In vitro experiment was conducted for selection of superior fungicides for the management of ginger soft rot.

9p caygaocaolon2 11-03-2020 12 0   Download

The tomato (var. sumberson) is highly susceptible to diseases caused by microorganisms as well as pest infestations; as a result serious loss is caused thereof in the production of those crops. On the background of these facts, the research was focused on controlling the diseases through the selected treatments with the objectives of evaluating the efficacy of Lantana camara extract, Balanites extract and their combinations to assess on controlling the pest/disease incidence and severity in tomato field conducted in Hamelmalo Agricultural College.

16p nguathienthan3 27-02-2020 17 0   Download